Italian Renaissance statics
This chapter deals with Italian Renaissance mechanics in which the Aristotelian approach with WVLs is joined to the Archimedean without VWLs. The first part presents the mechanics of Nicoló Tartaglia, who takes as a principle the VWL associated with Jordanus de Nemore’s concept of gravity of position. The final part shows the mechanics of Galileo Galilei, who uses as a principle the VWL based on virtual velocities with the concept of moment for which the efficacy of a weight on a scale is the greater the greater its virtual speed. And shows as a corollary the VWL based on virtual displacements according to which anything that can lift a weight p of a height h can raise p/n of nh. In the central part the contributions of Girolamo Cardano, Guidobaldo dal Monte and Giovanni Battista Benedetti are presented, all of which somehow refer to a VWL.